lec-25 - What's Next. Network Layer Network layer service...

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7 Oct 2008  BITS C481 (Computer Networks) 1 What’s Next… Network Layer Network layer service models Forwarding versus routing How a router works IPv4 Datagram and Fragmentation IPv4 Addressing NAT Today!!! Sub Netting Today !!! IPv4 to IPv6 translation ICMP Routing (path selection) Multicast Routing Internet protocol
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7 Oct 2008  BITS C481 (Computer Networks) 2 Two level Addressing
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7 Oct 2008  BITS C481 (Computer Networks) 3 Three levels of Hierarchy: Subnetting Example: An organization is given a block 17.12.14.0/26 How many addresses??? Range of addresses??? Organization has Four departments. Wants to divide the addresses into four sub-blocks of equal size. Address of each subnet??? How to access??? How it looks like from outside??? How many levels are possible???
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 BITS C481 (Computer Networks) 4 Three levels of Hierarchy: Subnetting Organization has three departments. Wants to divide the addresses into three sub-blocks of 32, 16, 16. Subnet mask for each subnet??? Range of addresses in each subnet???
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lec-25 - What's Next. Network Layer Network layer service...

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